Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications

The ability to control the properties of self-assembled monolayers (SAMs) attached to solid surfaces and the rare photocatalytic properties of titanium dioxide provide a rationale for the study of systems comprising both. Such systems can be realized in the form of SAMs grown on TiO2 or, in a complementary manner, as TiO2 grown on SAMs. Accordingly, the current status of knowledge regarding SAMs on TiO2 is described. Photocatalytic phenomena that are of specific relevance to SAMs, such as remote degradation, and cases where SAMs were used to study photocatalytic phenomena, are discussed as well. Mastering of micro-patterning is a key issue en route to a successful assimilation of a variety of titanium dioxide based devices. Accordingly, particular attention is given to the description of a variety of methods and techniques aimed at utilizing the photocatalytic properties of titanium dioxide for patterning. Reports on a variety of applications are discussed. These examples, representing the areas of photovoltaics, microelectronics, microelectromechanics, photocatalysis, corrosion prevention and even biomedicine should be regarded as appetizers paving the way for further studies to be performed.

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Photocatalytic Degradation of Self-Assembled Monolayers Anchored at the Vicinity of Titanium Dioxide Domains

Journal of Advanced Oxidation Technologies ◽

10.1515/jaots-2002-0104 ◽

2002 ◽

Vol 5 (1) ◽

Cited By ~ 1

Author(s):

E. Zemel ◽

H. Haick ◽

Y. Paz

Keyword(s):

Titanium Dioxide ◽

Photocatalytic Degradation ◽

Self Assembled Monolayers ◽

Assembled Monolayers ◽

Titanium Dioxide Photocatalyst ◽

Self Assembled

AbstractIn order to study the photodegradation of molecules located at the vicinity of a titanium dioxide photocatalyst, a well-defined structure comprised of alternating micro-stripes of TiO

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Controlling recombination kinetics of hybrid poly-3-hexylthiophene (P3HT)/titanium dioxide solar cells by self-assembled monolayers

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-016-6116-7 ◽

2016 ◽

Vol 28 (6) ◽

pp. 4732-4737 ◽

Cited By ~ 8

Author(s):

S. Loheeswaran ◽

M. Thanihaichelvan ◽

P. Ravirajan ◽

J. Nelson

Keyword(s):

Titanium Dioxide ◽

Solar Cells ◽

Self Assembled Monolayers ◽

Assembled Monolayers ◽

Self Assembled ◽

Kinetics Of ◽

Recombination Kinetics

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Remote Photocatalytic Activity as Probed by Measuring the Degradation of Self-Assembled Monolayers Anchored near Microdomains of Titanium Dioxide

The Journal of Physical Chemistry B ◽

10.1021/jp0037807 ◽

2001 ◽

Vol 105 (15) ◽

pp. 3045-3051 ◽

Cited By ~ 67

Author(s):

Hossam Haick ◽

Yaron Paz

Keyword(s):

Titanium Dioxide ◽

Photocatalytic Activity ◽

Self Assembled Monolayers ◽

Assembled Monolayers ◽

Self Assembled

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Selective Deposition and Micropatterning of Titanium Dioxide on Self-Assembled Monolayers from a Gas Phase

Langmuir ◽

10.1021/la0014609 ◽

2001 ◽

Vol 17 (16) ◽

pp. 4876-4880 ◽

Cited By ~ 36

Author(s):

Y. Masuda ◽

W. S. Seo ◽

K. Koumoto

Keyword(s):

Titanium Dioxide ◽

Gas Phase ◽

Self Assembled Monolayers ◽

Selective Deposition ◽

Assembled Monolayers ◽

Self Assembled

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Nonlinear Optical Microscopy for Imaging Patterned Self-Assembled Monolayers

MRS Proceedings ◽

10.1557/proc-440-209 ◽

1996 ◽

Vol 440 ◽

Author(s):

L. Smilowitz ◽

Q.X. Jia ◽

X. Yang ◽

D.Q. Li ◽

D. McBranch ◽

...

Keyword(s):

Nonlinear Optical ◽

Second Harmonic ◽

Self Assembled Monolayers ◽

Optical Technique ◽

Nonlinear Optical Microscopy ◽

Surface Sensitivity ◽

Surfaces And Interfaces ◽

Assembled Monolayers ◽

Potential Applications ◽

Self Assembled

AbstractWe have used the inherent surface sensitivity of second harmonic generation (SHG) to develop an instrument for nonlinear optical (NLO) microscopy of surfaces and interfaces. This optical technique is ideal for imaging nanometer thick self-assembled monolayers (SAM's) which have been patterned using photolithographic techniques. In this paper we demonstrate the application of SHG microscopy to patterned SAM's of the noncentrosymmetric molecule calixarene and discuss other potential applications for this new technique.

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Self-Assembled Monolayers: Assembling, Disassembling and Reassembling Studies Using Afm

Microscopy and Microanalysis ◽

10.1017/s1431927600018146 ◽

1999 ◽

Vol 5 (S2) ◽

pp. 964-965

Author(s):

B.R.A. Neves ◽

M. E. Salmon ◽

D.N. Leonard ◽

P.E. Russell ◽

E.B. Troughton

Keyword(s):

Double Layers ◽

Self Assembled Monolayers ◽

Adhesion Promoters ◽

Force Microscopy ◽

Atomic Force ◽

Assembled Monolayers ◽

Potential Applications ◽

Self Assembled ◽

Initial Deposition ◽

Formation Of Groups

Self-assembled monolayers (SAM) and multilayers of organic materials have been intensely studied in the past years, due to their numerous potential applications as, for example, lubricants, corrosioninhibitors and/or adhesion-promoters [1,2]. In this talk, we will present results of several studies carried out using Atomic Force Microscopy to investigate octadecylphosphonic acid (OPA) SAM deposited on mica. We have assessed various mechanisms of assembling, disassembling and reassembling the SAM on mica. The SAM deposition method employed in this work was drip coating using an OPA solution. We have used two different solvents, which exhibit very different OPA solubility, in this work: ethanol and trihydrofuran (THF). Regarding the assembling studies, we will show the formation of groups of OPA double-layers as the initial deposition stage (deposition time < 2 seconds) when using ethanol-based solutions. We will also show that annealing such samples at 60°C produces, favorably, OPA quadruple-layers, as shown in figures la and lb, respectively.

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